Fountain Solution is the liquid added to the water train in a printing press. Lithographic printing is all about maintaining an ink and water balance. The water component is half of the story and a very important part. No one uses plan water, it just doesn't work well. Instead, fountain solutions are used and they are often mixed with water. The properties of fountain solution exaggerate the effects that make the printing process work. Having good fountain solution habits is a very important part of keeping print quality consistent.